Conjunction Event Detail

    Medium Risk
    Monitor closely. Maneuver recommended for primary asset.
    3.090656E-5
    Collision Probability (Pc)
    Last Conjunction Event Update Time 2026-09-03T11:23:28+0800
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    1 Object 1

    AOE ID 53426
    NORAD ID 53426
    Object Type PAYLOAD
    Country
    US US
    VS

    2 Object 2

    AOE ID 61779
    NORAD ID 61779
    Object Type PAYLOAD
    Country
    CIS CIS

    Conjunction Constraints

    Parameter STARLINK-4558 MSU ALTAIR
    Time of Closest Approach 2026-09-04T05:16:46+0000
    Collision Probability (Pc) 3.090656E-5
    Conjunction Distance (km) 0.927 km
    Relative Speed (km/s) 12.285 km/s
    Conjunction Risk Parameters R (Radial): -0.891 | I (In-track): 0.158 | C (Cross-track): 0.194
    Collision Risk Index (CRI) 0.65
    X Position (km) 1157.471 1157.515
    Position Y (km) -3956.098 -3956.806
    Position Z (km) -5462.944 -5463.539
    Velocity X (km/s) 7.444 -3.211
    Velocity Y (km/s) 1.602 5.257
    Velocity Z (km/s) 0.417 -4.484

    Orbital Parameters 国际轨道数据源

    Parameter STARLINK-4558 MSU ALTAIR
    Semimajor Axis (a) 6837.975 km 6829.216 km
    Eccentricity (e) 0.000127 0.001327
    Inclination (i) 53.1622° 97.2902°
    RAAN 21.3026° 114.4809°
    Perigee Argument 90.7530° 34.8023°
    Mean Anomaly (M) 269.3619° 325.4087°
    Apogee 460.706 km 460.139 km
    Perigee 458.970 km 442.019 km
    Orbit Epoch 2026-09-01T18:17:17+0000 2026-09-02T14:48:00+0000

    STARLINK-4558 & MSU ALTAIR Collision Probability (Pc) Trend

    STARLINK-4558 & MSU ALTAIR Collision Probability (Pc) TrendNot Available

    STARLINK-4558 & MSU ALTAIR Miss Distance (Miss Distance) Trend

    STARLINK-4558 & MSU ALTAIR Miss Distance (Miss Distance) TrendNot Available

    STARLINK-4558Miss Distance Trend with All Objects

    Object 1 Miss Distance TrendNot Available

    MSU ALTAIRMiss Distance Trend with All Objects

    Object 2 Miss Distance TrendNot Available

    STARLINK-4558Collision Probability Trend

    Object 1 Probability TrendNot Available

    MSU ALTAIRCollision Probability Trend

    Object 2 Probability TrendNot Available

    Nearby Objects with STARLINK-4558

    No nearby objects data